121345404454 has 4 divisors (see below), whose sum is σ = 182018106684. Its totient is φ = 60672702226.

The previous prime is 121345404437. The next prime is 121345404461. The reversal of 121345404454 is 454404543121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30336351112 + ... + 30336351115.

It is an arithmetic number, because the mean of its divisors is an integer number (45504526671).

Almost surely, 2^121345404454 is an apocalyptic number.

121345404454 is a deficient number, since it is larger than the sum of its proper divisors (60672702230).

121345404454 is an equidigital number, since it uses as much as digits as its factorization.

121345404454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60672702229.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 121345404454 its reverse (454404543121), we get a palindrome (575749947575).

The spelling of 121345404454 in words is "one hundred twenty-one billion, three hundred forty-five million, four hundred four thousand, four hundred fifty-four".